[tcrist]

Put in a radio or not? It's you car, do what you want.
Where to put the speakers and what size would depend on the manufacture of you car. Someone that has a Superformance and has a radio could chime in on that.

My question would be, what to you do for an antenna? I would not want a radio in my dash, but if I could hide it some where and not have an antenna showing (because I just don't like the looks), what would you use and where would you put it.